import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login'
import Home from '../components/Home'

Vue.use(Router)

const router = new Router({
  routes: [
    {path: '/', redirect: '/login'},
    {path: '/login', component: Login},
    {path: '/home', component: Home}
  ]
})
router.beforeEach((to, from, next) => {
  // to代表的是将要访问的路径
  //from代表的是从那个路径来
  //next代表的是一个函数,表示放行
  if (to.path === '/login') return next()
  //通过token来判断是否是login页面
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
//到处路由
export default router
